怎样简便就怎样计算.3.25×39/5+6/5×3.25+13/4 1/5×37怎样简便就怎样计算.3.25×39/5+6/5×3.25+13/4 1/5×370％+6.3×1/5+4.4
问题描述：
怎样简便就怎样计算.3.25×39/5+6/5×3.25+13/4 1/5×37
怎样简便就怎样计算.3.25×39/5+6/5×3.25+13/4 1/5×370％+6.3×1/5+4.4
答
一
=3.25×（39/5+6/5）+13/4
=29.25+13/4
=32.5
二
=1/5×（3.7+6.3）+4.4
=2+4.4
=6.4
答
3.25x（39/5+6/5）+13/4=3.25x（39/5+6/5+1）=3.25x10=32.5
1/5×370％+6.3×1/5+4.4=1/5x（3.7+6.3）+4.4=0.2x10+4.4=6.4
答
3.25*(39/5)+(6/5)*3.25+13/4=(13/4)(39/5+6/5)+13/4=(13/4)*9+13/4=(13/4)*(9+1)=65/2
(1/5)*370%+6.3*1/5+4.4=(1/5)*(3.7+6.3)+4.4=2+4.4=6.4
答
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